88 documents found, page 1 of 9
Plastisphere assemblages differ from the surrounding bacterial communities in t...
Marques, José Manuel; Ares, Aitana; Costa, Joana; Marques, M. P. M.; de Carvalho, L. A. E. Batista; Bessa, FilipaMarine plastic contamination is currently considered ubiquitous in aquatic environments. These particles present a resistant and hydrophobic substrate known to promote microbial colonisation and biofilm formation in aquatic ecosystems, the so-called "Plastisphere", raising concerns about its potential ecological risks. The novelty of this topic translates into a relatively low number of studies, including for t...
Infrared Spectroscopy to Assess Manufacturing Procedures of Bone Artefacts from...
Gonçalves, David; Rosa, Joana; Brandão, Ana L.; Martins, Andrea; Neves, César; Diniz, Mariana S.; Arnaud, José M.; Marques, M. P. M.Vibrational spectroscopy was applied to study cylindrical engraved bone boxes from the Chalcolithic settlement of Vila Nova de São Pedro (VNSP, Azambuja, Portugal) which has the largest and richest artefact assemblage of Copper Age Western Iberia. The objectives were to reconstitute manufacturing techniques, determine the role of pyrotechnology in the production of cylindrical engraved bone boxes and assess oxy...
Seabirds as bioindicators of anthropogenic and chemical pollution
Matos, D. M.; Ramos, J. A.; Brandão, L. C.; Bessa, F.; Silva, V.; Rodrigues, I.; Antunes, S.; dos Santos, I.; Coentro, J.; Cunha, S. C.Background: Marine pollution, caused by anthropogenic debris, is a significant environmental issue that has detrimental effects on marine ecosystems [1]. Finding suitable sentinel species of the human impacts on the oceans, is imperative. As top predators, seabirds are considered sentinels of the marine environment [2]. Objective: To provide quantitative data about the distinctive prevalence of anthropogeni...
Vibrational spectroscopy to study ancient Roman funerary practices at the "Hypo...
Festa, G.; Rubini, M.; Zaio, P.; Gozzi, A.; Libianchi, N.; Parker, S. F.; Romanelli, G.; de Carvalho, L. A. E. Batista; Marques, M. P. M.The "Hypogeum of the Garlands" is a sepulchral site, recently found in Grottaferrata (Lazio, Italy), dating back to the first-second century AD. Two sarcophagi were discovered inside, hosting the human remains of Aebutia Quarta, a rich Roman woman, and her son Carvilius Gemellus. While the body of Carvilius is exceptionally well-preserved, following its embalming and perfect sealing of the sarcophagus, in the c...
Looking for Minor Phenolic Compounds in Extra Virgin Olive Oils Using Neutron a...
Senesi, Roberto; Andreani, Carla; Baglioni, Piero; Batista de Carvalho, Luís A. E.; Licoccia, Silvia; Marques, M. P. M.; Moretti, Giulia; Noce, AnnalisaExtra virgin olive oil (EVOO) is defined as a functional food as it contains numerous phenolic components with well-recognized health-beneficial properties, such as high antioxidant and anti-inflammatory capacity. These characteristics depend on their structural/conformational behavior, which is largely determined by intra- and intermolecular H-bond interactions. While the vibrational dynamics of isolated compo...
A New Look into Cancer-A Review on the Contribution of Vibrational Spectroscopy...
Mamede, Adriana Maria Pires; Santos, Inês P.; Carvalho, Ana L. M. Batista de; Figueiredo, Paulo; Silva, Maria C.; Tavares, Mariana V.; Marques, M. P. M.In 2020, approximately 10 million people died of cancer, rendering this disease the second leading cause of death worldwide. Detecting cancer in its early stages is paramount for patients' prognosis and survival. Hence, the scientific and medical communities are engaged in improving both therapeutic strategies and diagnostic methodologies, beyond prevention. Optical vibrational spectroscopy has been shown to be...
Neutrons for Cultural Heritage-Techniques, Sensors, and Detection
Festa, Giulia; Romanelli, Giovanni; Senesi, Roberto; Arcidiacono, Laura; Scatigno, Claudia; Parker, Stewart F; Marques, M. P. M.; Andreani, CarlaAdvances in research in Cultural Heritage see increasing application of a multidisciplinary approach and the combined use of physical and chemical characterization of artefacts that can be used to define their structure and their state of conservation, also providing valuable information in selecting the most suitable microclimatic conditions for the exhibition environment. This approach provides a platform for...
Role of intracellular water in the normal-to-cancer transition in human cells-i...
Marques, M. P. M.; Batista de Carvalho, A. L. M.; Mamede, A. P.; Dopplapudi, A.; García Sakai, V.; Batista de Carvalho, L. A. E.The transition from normal to malignant state in human cells is still a poorly understood process. Changes in the dynamical activity of intracellular water between healthy and cancerous human cells were probed as an innovative approach for unveiling particular features of malignancy and identifying specific reporters of cancer. Androgen-unresponsive prostate and triple-negative breast carcinomas were studied as...
The drying process of Sarcocornia perennis: impact on nutritional and physico-c...
Barroca, M. J.; Guiné, Raquel P. F.; Amado, A. M.; Ressurreição, S.; da Silva, A. Moreira; Marques, M. P. M.; de Carvalho, L. A. E. BatistaThe Sarcocornia genus is an extreme salt-toler- ant plant that can be cultivated in saline habitats almost worldwide. To preserve Sarcocornia perennis, convective drying experiments were conducted and their effects on the physico-chemical properties and phenolic content of the plant were studied using conventional and vibrational spectroscopy techniques. The drying process of Sarcocor- nia perennis at temperatu...
Fast and reliable ICP-MS quantification of palladium and platinum-based drugs i...
Vojtek, Martin; Pinto, Edgar; Gonçalves-Monteiro, Salomé; Almeida, Agostinho; Marques, M. P. M.; Mota-File, Hélder; Ferreira, Isabel M. P. L. V. O.Palladium-(Pd)-based drugs are emerging as alternatives to platinum (Pt) anticancer chemotherapeutics, which increases the need for efficient and suitable procedures of Pd analysis in reduced amounts of pre-clinical animal samples. Herein, an ICP-MS (inductively coupled plasma-mass spectrometry) method was developed and validated for simple and fast analysis of Pd/Pt-based drugs in 11 distinct biological matric...